Date: Thu, 22 Aug 2024 19:37:01 GMT From: Jessica Clarke <jrtc27@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 8afae0caf4c4 - main - riscv: Add machine/ifunc.h corresponding to rtld-elf's resolver interface Message-ID: <202408221937.47MJb1OP034928@gitrepo.freebsd.org>
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The branch main has been updated by jrtc27: URL: https://cgit.FreeBSD.org/src/commit/?id=8afae0caf4c4816eb56b732fcd1a4b185e86098a commit 8afae0caf4c4816eb56b732fcd1a4b185e86098a Author: Jessica Clarke <jrtc27@FreeBSD.org> AuthorDate: 2024-08-22 19:36:45 +0000 Commit: Jessica Clarke <jrtc27@FreeBSD.org> CommitDate: 2024-08-22 19:36:45 +0000 riscv: Add machine/ifunc.h corresponding to rtld-elf's resolver interface Reviewed by: kib, mhorne MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D46279 --- sys/riscv/include/ifunc.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/sys/riscv/include/ifunc.h b/sys/riscv/include/ifunc.h new file mode 100644 index 000000000000..0f9747a2aa14 --- /dev/null +++ b/sys/riscv/include/ifunc.h @@ -0,0 +1,49 @@ +/*- + * Copyright (c) 2015-2018 The FreeBSD Foundation + * Copyright (c) 2024 Jessica Clarke <jrtc27@FreeBSD.org> + * + * Part of this software was developed by Konstantin Belousov <kib@FreeBSD.org> + * under sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __RISCV_IFUNC_H +#define __RISCV_IFUNC_H + +#define DEFINE_IFUNC(qual, ret_type, name, args) \ + static ret_type (*name##_resolver(void))args __used; \ + qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \ + static ret_type (*name##_resolver(void))args + +#define DEFINE_UIFUNC(qual, ret_type, name, args) \ + static ret_type (*name##_resolver(unsigned long, unsigned long, \ + unsigned long, unsigned long, unsigned long, unsigned long, \ + unsigned long, unsigned long))args __used; \ + qual ret_type name args __attribute__((ifunc(#name "_resolver"))); \ + static ret_type (*name##_resolver(unsigned long elf_hwcap __unused, \ + unsigned long _arg2 __unused, unsigned long _arg3 __unused, \ + unsigned long _arg4 __unused, unsigned long _arg5 __unused, \ + unsigned long _arg6 __unused, unsigned long _arg7 __unused, \ + unsigned long _arg8 __unused))args + +#endif
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